<!DOCTYPE html>
<html lang="zh">
<head>
    <meta charset="UTF-8">
    <title>盒子模型</title>
    <style type="text/css">
        #fatherdiv{
            width: 200px;
            height: 200px;
            background-color: antiquewhite;
/*            padding-left: 100px;
            padding-top: 100px;*/
        }
        #sondiv{
            width: 50px;
            height: 50px;
            background-color: aqua;
            margin-left: 100px;
            margin-top: 100px;
        }
    </style>
</head>
<body>
<div id="fatherdiv">
    <div id="sondiv">
    </div>
</div>


</body>
</html>